Page 368 of 521

#
Remo vethef iree xtinguishe rfromt hestow‐
ag ec ompartment. Flat ty
re Note
sonf lat tyres &
WARNING Risk of accident du etoaflat
tyre
Af lat tyr eseve rely affects thed riving charac‐
te rist ics as well as thes teering and braking
of thev ehicle.
Ty resw ithout run-flat characteristics: #
Do no tdrive on wit haflat tyre. #
Chang ethe flat tyr eimmediatel ywith
th ee mer gency spa rewheel or spare
wheel. Alternativel y,consult aqualified
specialis tworks hop.
Ty resw ithrun-flat characteristics: #
Obse rvet he information and warning
no tesonM OExtended tyres (run-flat
tyres). In
thee vent of aflat tyre, thef ollowing options
ar ea vailable dependin gonyourvehicle's equip‐
ment:
R Vehicles with MOExtende dtyres: it is pos‐
sibl etoc ontinu ethe journe yfor as hort
period of time. Mak esurey ou obser vethe
no tesonM OExtended tyres (run-flat tyres)
(→ pag e367).
R Vehicles with aTIREFIT kit: youc an repair
th et yresot hat it is possibletoc ontinuethe
journe yfor as hor tperiod of time. Todo this,
use theT IREFI Tkit (→ page369).
R Vehicles with Mercedes me connect: you
can mak eacallf or breakdown assis tanc ev ia
th eo verhead control panel in thec ase of a
breakdown (→ page305).
R Allvehicles: chang ethe wheel
(→ pag e398). MOExtended tyres (run-flat tyres)
&
WARNING Risk of accident whe ndriving
in li mp-hom emode
Whe ndriving in emergency mod ethe han‐
dling characteristic sareimpaired. e.g .when
cornering ,when accelerating stronglyand
when braking. #
Do no texceed thes pecified maximum
speed. #
Avoid an yabrup tsteering and driving
manoeuvres as well as drivin gover
obs tacle s(kerbs, po tholes, off-road).
Thi sapplies ,inparticular ,toal oaded
ve hicle. #
Stop driving in thee mer gency mod eif
yo un otice:
R bangin gnoise
R vehicle vibration
R smok ewhichs mells lik erubber
R continuous ESP ®
inter vention
R crac ksin tyr eside walls Breakdown assis
tance 365
Page 405 of 521

#
Chec kthe tyr epressur eoft he newl ymoun‐
te dw heel and adjus taccording ly. #
Vehicles with tyr epressur elossw arning
sy stem: restar tt he tyr epressur eloss warn‐
ing sy stem (→ page392). #
Vehicles with atyrep ressur emonitoring
sy stem: restar tt he tyr epressur emonitoring
sy stem (→ page388).
Mak esuretoo bservethef ollowing fur ther rela‐
te ds ubjec t:
R Notesont yrep ressur e(→pag e385) Collapsible spar
ewheel Note
sont he collapsible spar ewheel &
WARNING Risk of accident caused by
incor rect wheel and tyr edimensions
The wheel or tyr esize and thet yret ype of
th ee mer gency spa rewheel or spar ewheel
and thew heel tobe replaced ma ydiffe r.
Mounting an emer gency spa rewheel/spare
wheel ma yseve rely impair thed riving char‐
acteristics. To
preve nt hazardous situations: #
Adapty our driving stylea ccording lyand
driv ecarefull y. #
Neverfit mo rethan on eemer gency
spa rewheel or spar ewheel that dif fers
in size. #
Onlyuse an emer gency spa rewheel or
spar ewheel of adiffe re nt size brie fly. #
Do no tswitcho ffESP ®
. #
>Ha vethee mer gency spa rewheel or
spar ewheel of adiffe re nt size replaced
at then eares tqualified specialis twork‐
shop. The ne wwheel mus thave the
cor rect dimensions. The collapsible spa
rewheel is an emer gency
whee lwhich is only suitable foru se foral imited
period of time and in arestricted manner in the
eve nt of aflat tyr e(e.g. until then eares twork‐
shop).
The tyr eside walls ar efolded when in transport
mode. Befor euse, thec ollapsible spar ewheel has
tobe inflated wit hthe accompanying com‐
pressor.
Chec kthe tyr epressur eoft he collapsibl espare
wheel oncef itted. Correct thep ressur easn ec‐
essar y.
The maximum permissible speed wit hacollapsi‐
ble spar ewheel fitted is 80 km/h.
Do no tfit sn ow ch ains wit hthe collapsibl espare
wheel.
Re place thec ollapsible spar ewheel af ters ix
ye arsatt he latest, rega rdless of wear.
% Ve
hicles with atyrep ressur elossw arn‐
ing sy stem: ifac ollapsible spar ewheel is
fi tted ,the tyr epressur eloss warning sy stem
cann otfunction reliabl y.Onl yrestart thes ys‐
te ma gain when thec ollapsible spar ewheel
has been replaced wit hanewwheel.
Ve hicles with atyrep ressur emonitoring
sy stem: ifac ollapsible spar ewheel is fitted
th et yrep ressur emonitoring sy stem cann ot
function reliably .Onlyr estart thes ystem
again when thec ollapsible spar ewheel has
been replaced wit hanewwheel. 402
Wheels and tyres
Page 406 of 521

Ve
hicles with atyrep ressur emonitoring
sy stem: foraf ewminutes af terac ollapsible
spar ewhee lisf itted, thes ystemm aystill
displa ythe tyr epressur eoft heremo ved
wheel.
Be sur etoalso obse rvet he following fur ther
re lated subjects:
R Notesont yrep ressur e(→pag e385)
R Tyre pressur etable (→ page386) Re
moving the collapsibl espar ew heel The collapsible spar
ewheel is secured in thec ol‐
lapsible spar ewheel bag in theb oot. #
Obser vethei nformation on mounting tyres
(→ pag e392). #
Open theb oot. #
Detach thef astening stra ps. #
Unhook ther etainin gspring hook softhefas‐
te ning stra ps from theb rack ets. #
Remo vethee mer gency spa rewheel bag
to ge ther wit hthe collapsibl espar ew heel. #
Open thee mer gency spa rewheel bag and
re mo vethec ollapsible spar ewheel. Inflating
thec ollapsible spa rewheel Re
quirements:
R Mount thec ollapsible spar ewheel as descri‐
bed. (→ page400)
R Remo vethet yrei nflation compressor from
th es towa ge well under theb ootfloor.
(→ pag e366)
* NO
TEDama getothec ollapsible spare
wheel when lo wering thev ehicle Lo
we ring thev ehicle without pr eviously
inflatin gthe collapsibl espar ew heel can
damag eits rim. #
Inflat ethe collapsibl espar ew heel using
th et yrei nflation compressor before
lo we ring thev ehicle. *
NO
TEOverheating du etothe tyr einfla‐
tion compressor running tool ong #
Do no trun thet yrei nflation compres‐
sor forl onger than tenm inutesw ithout
inter ruption. #
Pull connec tor4 and theh ose out of the
housing. #
Unscr ew thec ap from thev alveont he col‐
lapsible spar ewheel. Wheels and tyres
403